| Autor: |
D. A. Samsonov, E. P. Pavlenko, M. V. Andreev, A. Sklyanov, A. M. Zubareva, I. B. Voloshina, V. G. Metlov, S. Yu. Shugarov, A. V. Golovin, O. I. Antoniuk |
| Jazyk: |
angličtina |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
Odessa Astronomical Publications, Vol 23, Iss 0, Pp 98-100 (2010) |
| Druh dokumentu: |
article |
| ISSN: |
1810-4215 |
| DOI: |
10.18524/1810-4215.2010.23.85241 |
| Popis: |
We present the result of O–C analysis of the dwarf nova MN Dra. It is based on the multi-site photometric observations that were made over 77 nights in August – November, 2009. The total exposure was 433 hours. During this time binary underwent two superoutbursts and five normal outbursts. In superoutbursts the positive superhumps decreased with extremely large P = -(3 - 8) x 10-4 for SU UMa-like dwarf novae, confirming the known behavior of MN Dra in 2003. MN Dra displayed large-amplitude (up to 1.4m in quiescence and 0.1m–0.2m in normal outbursts) negative superhumps. The improved value of negative superhump period is 0.095952(4) d. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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